package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.common.vo.MemberRespVo;
import com.atguigu.gulimall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

@Slf4j
@Controller
public class OAuth2Controller {

    @Autowired
    MemberFeignService memberFeignService;

    /**
     * 处理社交登录请求
     */
    @GetMapping("/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession session) throws Exception {
        //1.根据code换取accessToken
        Map map = new HashMap<>();
        map.put("client_id","2283537938");
        map.put("client_secret","ddae71c6138104f2e8aebce46b5c5fec");
        map.put("grant_type","authorization_code");
        map.put("redirect_uri","http://auth.gulimall.com/oauth2.0/weibo/success");
        map.put("code",code);
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post",
                new HashMap<>(16),new HashMap<>(16),map);
        if (response.getStatusLine().getStatusCode()==200){
            // 获取到了accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);
            // 知道了当前是哪个微博用户
            // 1. 当前用户如果是第一次进网站，自动注册进来（为当前社交用户生成一个会员信息账号，
            // 以后这个社交账号就对应我们指定的会员）
            R oauthLogin = memberFeignService.oauthlogin(socialUser);
            if (oauthLogin.getCode()==0){
                // 2. 登录成功就跳回首页
                MemberRespVo data = (MemberRespVo) oauthLogin.getData("data", new TypeReference<MemberRespVo>() {
                });
                log.info("登录成功：用户信息：{}",data.toString());
                session.setAttribute("loginUser",data);
                return "redirect:http://gulimall.com";
            }else {
                return "redirect:http://auth.gulimall.com/login.html";
            }

            // 登录或者注册这个社交用户
        }else {
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }
}
